src/third_party/mozjs-45/js/src/jsapi-tests/testDateToLocaleString.cpp

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 * vim: set ts=8 sts=4 et sw=4 tw=99:
 */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "jsapi-tests/tests.h"

BEGIN_TEST(testDateToLocaleString)
{
    // This test should only attempt to run if we have Intl support: necessary
    // to properly assume that changes to the default locale will predictably
    // affect the behavior of the locale-sensitive Date methods tested here.
    JS::Rooted<JS::Value> haveIntl(cx);
    EVAL("typeof Intl !== 'undefined'", &haveIntl);
    if (!haveIntl.toBoolean())
        return true;

    // Pervasive assumption: our Intl support includes "de" (German) and
    // "en" (English) and treats them differently for purposes of
    // Date.prototype.toLocale{,Date,Time}String behavior.

    // Start with German.
    CHECK(JS_SetDefaultLocale(rt, "de"));

    // The (constrained) Date object we'll use to test behavior.
    EXEC("var d = new Date(Date.UTC(2015, 9 - 1, 17));");

    // Test that toLocaleString behavior changes with default locale changes.
    EXEC("var deAll = d.toLocaleString();");

    CHECK(JS_SetDefaultLocale(rt, "en"));
    EXEC("if (d.toLocaleString() === deAll) \n"
         "  throw 'toLocaleString results should have changed with system locale change';");

    // Test that toLocaleDateString behavior changes with default locale changes.
    EXEC("var enDate = d.toLocaleDateString();");

    CHECK(JS_SetDefaultLocale(rt, "de"));
    EXEC("if (d.toLocaleDateString() === enDate) \n"
         "  throw 'toLocaleDateString results should have changed with system locale change';");

    // Test that toLocaleTimeString behavior changes with default locale changes.
    EXEC("var deTime = d.toLocaleTimeString();");

    CHECK(JS_SetDefaultLocale(rt, "en"));
    EXEC("if (d.toLocaleTimeString() === deTime) \n"
         "  throw 'toLocaleTimeString results should have changed with system locale change';");

    JS_ResetDefaultLocale(rt);
    return true;
}
END_TEST(testDateToLocaleString)